CN114472076B - Dispensing valve and dispensing device - Google Patents
Dispensing valve and dispensing device Download PDFInfo
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- CN114472076B CN114472076B CN202210078804.8A CN202210078804A CN114472076B CN 114472076 B CN114472076 B CN 114472076B CN 202210078804 A CN202210078804 A CN 202210078804A CN 114472076 B CN114472076 B CN 114472076B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
- B05C5/0225—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work characterised by flow controlling means, e.g. valves, located proximate the outlet
Abstract
The invention relates to a dispensing valve and a dispensing device with the dispensing valve. This point gum valve includes: the glue outlet assembly is provided with a glue outlet; the first glue injection assembly is provided with a first glue injection opening; the second glue injection assembly is provided with a second glue injection port; the switching assembly comprises a switching piece and a switching power source, the switching piece is provided with a first discharging channel and a second discharging channel, and the switching power source drives the switching piece to move; the conversion piece is provided with a first working position and a second working position, and when the conversion piece is positioned at the first working position, the first glue injection port is communicated with the glue outlet through the first discharging channel; when the conversion piece is located at a second working position, the second glue injection port is communicated with the glue outlet through the second discharge channel. The dispensing valve can realize continuous dispensing, avoid glue injection waiting gaps and greatly improve the production efficiency.
Description
Technical Field
The invention relates to the technical field of automatic dispensing, in particular to a dispensing valve and a dispensing device with the dispensing valve.
Background
All glue dispensing valves in the current market have the main structure that after a single cavity is connected with a driving motor through a plunger rod, the driving motor drives the plunger rod to reciprocate so as to suck and spray glue, for example, Chinese patent numbers CN113877773A and CN 102107171A. Although the whole continuous dispensing process technology of the existing dispensing valve is mature, the existing dispensing valve has a large technical barrier: after the glue in the dispensing valve cavity is sprayed, dispensing needs to be stopped firstly, then the glue is sucked again, and dispensing is carried out after enough glue is injected into the dispensing valve cavity; in the whole working process, continuous spraying of glue can not be realized, and the whole glue dispensing valve can continue to dispense glue after the glue is sucked into the cavity again.
Disclosure of Invention
Based on this, the invention aims to provide a dispensing valve and a dispensing device with the dispensing valve, the dispensing valve can realize continuous dispensing, can realize dispensing of glue while injecting glue, and compared with the prior art, the dispensing valve perfectly avoids a glue injection waiting gap and greatly improves the production efficiency.
A dispensing valve, comprising: the glue outlet assembly is provided with a glue outlet; the first glue injection assembly is provided with a first glue injection opening; the second glue injection assembly is provided with a second glue injection port; the switching assembly comprises a switching piece and a switching power source, the switching piece is provided with a first discharging channel and a second discharging channel, and the switching power source drives the switching piece to move; the conversion piece is provided with a first working position and a second working position, and when the conversion piece is positioned at the first working position, the first glue injection port is communicated with the glue outlet through the first discharge channel; when the conversion piece is located at a second working position, the second glue injection port is communicated with the glue outlet through the second discharge channel.
Further, the first glue injection assembly comprises a first glue cylinder and a first glue injection channel, and the first glue injection channel is provided with the first glue injection port; the second glue injection assembly comprises a second glue cylinder and a second glue injection channel, and the second glue injection channel is provided with a second glue injection port; the conversion piece is provided with a first feeding channel and a second feeding channel; when the conversion piece is located at the first working position, the second rubber cylinder is communicated with the second rubber injection channel through the second material supplementing channel; when the conversion piece is located at the second working position, the first rubber cylinder is communicated with the first rubber injection channel through the first material supplementing channel.
Further, when the conversion piece is in a first working position, the first rubber cylinder is communicated with the first feeding channel; when the conversion piece is in a second working position, the second rubber cylinder is communicated with the second feeding channel.
Furthermore, the dispensing valve further comprises a valve body, the first glue injection channel and the second glue injection channel are arranged in the valve body, a first glue inlet channel and a second glue inlet channel are arranged in the valve body, the first glue inlet channel is communicated with the first glue cylinder, the first glue inlet channel is communicated with the first glue injection channel through the first glue supplementing channel, the second glue inlet channel is communicated with the second glue cylinder, and the second glue inlet channel is communicated with the second glue injection channel through the second glue supplementing channel.
Furthermore, a glue outlet channel and a containing cavity are arranged in the valve body, the first discharging channel is communicated with the glue outlet through the glue outlet channel, the second discharging channel is communicated with the glue outlet through the glue outlet channel, the first glue injection port, the second glue injection port, the outlet of the first glue inlet channel, the outlet of the second glue inlet channel and the inlet of the glue outlet channel are arranged on the inner wall surface of the containing cavity, and the conversion piece slides in the containing cavity.
Further, the switching assembly further comprises a bushing which is installed in the accommodating cavity in an interference fit manner, the conversion piece is arranged in the bushing in a sliding manner, the bushing is provided with a first glue inlet hole, a second glue inlet hole, a first glue injection hole, a second glue injection hole and a glue outlet hole, the first glue inlet channel is communicated with the first feed supplement channel through the first glue inlet hole, the second glue inlet channel is communicated with the second feed supplement channel through the second glue inlet hole, the first glue injection port is communicated with the first discharge channel through the first glue injection hole, the second glue injection port is communicated with the second discharge channel through the second glue injection hole, the first discharging channel is communicated with the glue outlet through the glue outlet hole, and the second discharging channel is communicated with the glue outlet through the glue outlet hole.
Further, the lining is made of wear-resistant materials such as polytetrafluoroethylene, graphite or ceramics.
Further, the conversion piece is also made of wear-resistant materials such as polytetrafluoroethylene, graphite or ceramics.
Further, hold the chamber and follow one side of valve body extends to the opposite side of valve body hold the both ends in chamber and be provided with end cover, switching power supply respectively, end cover detachably installs on the valve body, switching power supply detachably installs on the valve body, end cover the switching power supply seals respectively hold the both ends opening in chamber.
Further, a first seal member is provided between the seal cover and the valve body, the first seal member surrounding an opening of one end of the accommodation chamber.
Further, a second seal member is provided between the switching power source and the valve body, the second seal member surrounding an opening of the other end of the accommodation chamber.
Further, the first glue injection assembly further comprises a first liquid box, the first liquid box is installed on the valve body, the first glue cylinder is installed on the first liquid box, the first liquid box is provided with a first flow channel, one end of the first flow channel is communicated with the first glue cylinder, and the other end of the first flow channel is communicated with the first glue inlet channel.
Furthermore, the second glue injection assembly further comprises a second liquid box, the second liquid box is installed on the valve body, the second glue cylinder is installed on the second liquid box, the second liquid box is provided with a second flow channel, one end of the second flow channel is communicated with the second glue cylinder, and the other end of the second flow channel is communicated with the second glue inlet channel.
Furthermore, the first end of the first discharge channel is used for being communicated with the first glue injection port, and the second end of the first discharge channel is used for being communicated with the glue outlet; the first end of the second discharging channel is communicated with the second glue injection port, and the second end of the second discharging channel is communicated with the glue outlet; the second end of the first discharge channel and the second end of the second discharge channel merge at the same outlet.
Further, first injecting glue subassembly still includes first injecting glue pole, first injecting glue pole slides and sets up in the first injecting glue passageway.
Furthermore, the second injecting glue subassembly still includes the second pole of injecting glue, the second injecting glue pole slides and sets up in the second injecting glue passageway.
Further, be provided with first sealing washer between first notes glue pole with first notes glue passageway.
Further, a second sealing ring is arranged between the second glue injection rod and the second glue injection channel.
Further, the dispensing valve further comprises a power assembly, and the power assembly provides power for the displacement of the first glue injection rod and the second glue injection rod.
Further, the power assembly comprises a first lead screw, a second lead screw and a driving motor, the first lead screw is arranged on the first glue injection rod, the second lead screw is arranged on the second glue injection rod, the thread direction of the second lead screw is opposite to that of the first lead screw, the driving lead screw is arranged on an output shaft of the driving motor, and the driving lead screw is simultaneously in threaded connection with the first lead screw and the second lead screw.
Further, the power assembly comprises a first lead screw, a second lead screw, a first motor and a second motor, the first lead screw is arranged on the first glue injection rod, the second lead screw is arranged on the second glue injection rod, an output shaft of the first motor is in threaded connection with the first lead screw, and an output shaft of the second motor is in threaded connection with the first lead screw.
Further, the power assembly comprises a first cylinder and a second cylinder, an output shaft of the first cylinder is connected with the first glue injection rod, and an output shaft of the second cylinder is connected with the second glue injection rod.
Further, the power assembly comprises a first oil cylinder and a second oil cylinder, an output shaft of the first oil cylinder is connected with the first glue injection rod, and an output shaft of the second oil cylinder is connected with the second glue injection rod.
A dispensing device comprises the dispensing valve.
For a better understanding and practice, the invention is described in detail below with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic view of an assembly of a dispensing valve according to an embodiment;
FIG. 2 is an exploded view of the dispensing valve according to an embodiment;
FIG. 3 is a schematic view of the switching element according to the embodiment in a first working position;
FIG. 4 is an enlarged view of the point A in FIG. 3;
FIG. 5 is a schematic view of the conversion member of the embodiment in a first operating position;
reference numerals:
1. a glue discharging assembly; 11. a glue outlet; 2. a first glue injection assembly; 21. a first glue injection channel; 22. a first glue cylinder; 23. a first liquid cartridge; 231. a first flow passage; 24. a first glue injection rod; 25. a first seal ring; 3. a second glue injection assembly; 31. a second glue injection channel; 32. a second glue cylinder; 33. a second liquid cartridge; 331. a second flow passage; 34. a second glue injection rod; 35. a second seal ring; 4. a switching component; 41. a conversion member; 411. a first discharge channel; 412. a second discharge channel; 413. a first feed channel; 414. a second feed channel; 42. switching power sources; 43. a bushing; 431. a first glue inlet hole; 432. a second glue inlet hole; 433. a first glue injection hole; 434. a second glue injection hole; 435. a glue outlet hole; 5. a valve body; 51. a first glue inlet channel; 52. a second glue inlet channel; 53. a glue outlet channel; 54. an accommodating chamber; 55. sealing the end cap; 56. a first seal member; 57. a second seal member; 6. a power assembly; 61. a first lead screw; 62. a second lead screw; 63. a drive motor; 631. the screw rod is driven.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below are exemplary embodiments for explaining the present invention with reference to the drawings and should not be construed as limiting the present invention, and those skilled in the art can make various changes, modifications, substitutions and alterations to the embodiments without departing from the principle and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
In the description of the present invention, it is to be understood that the terms "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
A dispensing valve according to an embodiment of the present invention is described below with reference to fig. 1 to 5.
Referring to fig. 1 to 5, a dispensing valve according to an embodiment of the present invention may include: go out gluey subassembly 1, first injecting glue subassembly 2, second injecting glue subassembly 3, switching module 4. Specifically, the glue outlet assembly 1 has a glue outlet 11. The first glue injection assembly 2 is provided with a first glue injection opening. The second glue injection assembly 3 is provided with a second glue injection opening. The switching assembly 4 includes a switching member 41 and a switching power source 42, the switching member 41 has a first discharging channel 411 and a second discharging channel 412, and the switching power source 42 drives the switching member 41 to displace. The conversion member 41 has a first working position and a second working position, and when the conversion member 41 is located at the first working position, the first glue injection port is communicated with the glue outlet 11 through the first discharging channel 411, and at this time, the second glue injection port is not communicated with the glue outlet 11. When the converting element 41 is in the second working position, the second glue injection port is communicated with the glue outlet 11 through the second discharging channel 412, and at this time, the first glue injection port is not communicated with the glue outlet 11.
According to the dispensing valve of this embodiment, realize first injecting glue subassembly 2 and the intercommunication of play gluey subassembly 1, second injecting glue subassembly 3 and the intercommunication of play gluey subassembly 1 through switching the module. The concrete points are as follows: when the first glue injection assembly 2 injects glue into the glue outlet assembly 1, the second glue injection assembly 3 is supplementing enough glue; after the glue of the first glue injection assembly 2 is used, the second glue injection assembly 3 is switched to be communicated with the glue outlet assembly 1, the second glue injection assembly 3 injects the glue into the glue outlet assembly 1, and the first glue injection assembly 2 supplements the glue, so that continuous circulation work is realized, continuous glue dispensing is realized, a glue injection waiting gap is avoided, and the production efficiency is greatly improved.
In some embodiments of the present invention, referring to fig. 1 to 5, a first end of the first discharging channel 411 is configured to communicate with the first glue injection opening, and a second end of the first discharging channel 411 is configured to communicate with the glue outlet 11. The first end of the second discharging channel 412 is used for being communicated with the second glue injection port, and the second end of the second discharging channel 412 is used for being communicated with the glue outlet 11. The second end of the first outlet channel 411 and the second end of the second outlet channel 412 merge at the same outlet. Through the design, the first discharging channel 411 and the second discharging channel 412 share part of the channels and the outlets, on one hand, glue in the discharging channels can be fully utilized, on the other hand, the channel blockage caused by the solidification of glue in the non-working discharging channels can be effectively prevented, and even if the glue is solidified, the resistance is small.
In some embodiments of the present invention, referring to fig. 1 to 5, the first glue injection assembly 2 includes a first glue cartridge 22 and a first glue injection channel 21, and the first glue injection channel 21 has the first glue injection opening. The second glue injection assembly 3 includes a second glue cylinder 32 and a second glue injection channel 31, and the second glue injection channel 31 has the second glue injection opening. The conversion member 41 has a first feeding channel 413 and a second feeding channel 414. When the converting element 41 is in the first working position, the first glue injection port is communicated with the glue outlet 11 through the first discharging channel 411, the second glue injection port is not communicated with the glue outlet 11, and the second glue cylinder 32 is communicated with the second glue injection channel 31 through the second feeding channel 414. When the converting element 41 is in the second working position, the second glue injection port is communicated with the glue outlet 11 through the second discharging channel 412, the first glue injection port is not communicated with the glue outlet 11, and the first glue cylinder 22 is communicated with the first glue injection channel 21 through the first supplementary material channel 413. Through this design, the conversion part 41 can control the play of first injecting glue subassembly 2 simultaneously or mend gluey, the play of second injecting glue subassembly 3 glues or mend gluey, provides work efficiency.
In this embodiment, when the converting element 41 is in the first working position, the first glue injection port is communicated with the glue outlet 11 through the first discharging channel 411, and the second glue injection port is not communicated with the glue outlet 11, wherein the first glue cylinder 22 is communicated with the first supplementary channel 413 to replenish glue to the first glue injection channel 21 at any time, and the second glue cylinder 32 is communicated with the second glue injection channel 31 through the second supplementary channel 414. When the converting element 41 is in the second working position, the second glue injection port is communicated with the glue outlet 11 through the second discharging channel 412, and at this time, the first glue injection port is not communicated with the glue outlet 11, wherein the first glue cylinder 22 is communicated with the first glue injection channel 21 through the first glue supplementing channel 413, and the second glue cylinder 32 is communicated with the second glue supplementing channel 414 to supplement glue to the second glue injection channel 31 at any time. Through the design, the glue can enter the first glue injection channel 21 or the second glue injection channel 31 at the first time after the switching work is completed, the glue supplementing time is greatly saved, and the working efficiency is improved.
In some embodiments of the present invention, referring to fig. 1 to 5, the first glue injection assembly 2 further includes a first glue injection rod 24, and the first glue injection rod 24 is slidably disposed in the first glue injection channel 21. The second glue injection assembly 3 further comprises a second glue injection rod 34, and the second glue injection rod 34 is arranged in the second glue injection channel 31 in a sliding mode. The dispensing valve further comprises a power assembly 6, the power assembly 6 provides power for the displacement of the first glue injection rod 24 and the second glue injection rod 34, and the power assembly 6 can be a motor, a cylinder, an oil cylinder and the like. Through the design, glue is extruded from the first glue injection channel 21 by the first glue injection rod 24, and glue is extruded from the second glue injection channel 31 by the second glue injection rod 34.
In some specific examples, the power assembly 6 may include a first lead screw 61, a second lead screw 62, and a driving motor 63, the first lead screw 61 is disposed on the first glue injection rod 24, the second lead screw 62 is disposed on the second glue injection rod 34, a thread direction of the second lead screw 62 is opposite to a thread direction of the first lead screw 61, an output shaft of the driving motor 63 is mounted with a driving lead screw 631, and the driving lead screw 631 is in threaded connection with both the first lead screw 61 and the second lead screw 62. When the driving motor 63 rotates forward, the driving motor 63 drives the first lead screw 61 to move upward through the driving lead screw 631, the first lead screw 61 drives the first glue injection rod 24 to move upward to realize glue supplementing operation of the first glue injection channel 21, meanwhile, the driving motor 63 also drives the second lead screw 62 to move downward through the driving lead screw 631, and the second lead screw 62 moves to drive the second glue injection rod 34 to move downward to realize glue injecting operation of the second glue injection channel 31. When the driving motor 63 rotates reversely, the driving motor 63 drives the first lead screw 61 to move downwards through the driving lead screw 631, the first lead screw 61 drives the first glue injection rod 24 to move downwards to realize glue injection work of the first glue injection channel 21, meanwhile, the driving motor 63 drives the second lead screw 62 to move upwards through the driving lead screw 631, and the second lead screw 62 drives the second glue injection rod 34 to move upwards to realize glue supplement work of the second glue injection channel 31.
In addition, the power assembly 6 can also adopt other devices for driving the glue injection rod to move linearly. For example, the power assembly 6 includes a first lead screw 61, a second lead screw 62, a first motor (not shown), and a second motor (not shown), the first lead screw 61 is disposed on the first glue injection rod 24, the second lead screw 62 is disposed on the second glue injection rod 34, an output shaft of the first motor is in threaded connection with the first lead screw 61, an output shaft of the second motor is in threaded connection with the first lead screw 61, and the two motors individually control the movement of the first glue injection rod 24 and the second glue injection rod 34. For another example, the power assembly 6 includes a first air cylinder (not shown) and a second air cylinder (not shown), an output shaft of the first air cylinder is connected to the first glue injection rod 24, an output shaft of the second air cylinder is connected to the second glue injection rod 34, and the two air cylinders are used to independently control the movement of the first glue injection rod 24 and the second glue injection rod 34. For another example, the power assembly 6 includes a first cylinder (not shown) and a second cylinder (not shown), an output shaft of the first cylinder is connected to the first glue injection rod 24, and an output shaft of the second cylinder is connected to the second glue injection rod 34.
In addition, in order to improve the sealing performance between the glue injection rod and the glue injection channel and avoid the overflow of glue in the gap between the glue injection rod and the glue injection channel, a first sealing ring 25 is arranged between the first glue injection rod 24 and the first glue injection channel 21, and a second sealing ring 35 is arranged between the second glue injection rod 34 and the second glue injection channel 31.
In some embodiments of the present invention, referring to fig. 1-5, the dispensing valve further comprises a valve body 5. The valve body 5 is provided with the first glue injection channel 21 and the second glue injection channel 31, the valve body 5 is further provided with a first glue inlet channel 51 and a second glue inlet channel 52, and the first glue inlet channel 51 is communicated with the first glue cylinder 22. The first glue inlet channel 51 is communicated with the first glue injection channel 21 through a first supplementary channel 413, the second glue inlet channel 52 is communicated with the second glue cylinder 32, and the second glue inlet channel 52 is communicated with the second glue injection channel 31 through a second supplementary channel 414. Through the design, two injecting glue subassemblies can be a valve body 5 jointly, simplify the overall structure of dispensing valve widely to reduce the whole size of dispensing valve, in order to adapt to different service environment.
In some embodiments of the present invention, referring to fig. 1 to 5, a glue outlet channel 53 and a receiving cavity 54 are further provided in the valve body 5. The first discharging channel 411 is communicated with the glue outlet 11 through the glue outlet channel 53, and the second discharging channel 412 is communicated with the glue outlet 11 through the glue outlet channel 53. The inner wall surface of the accommodating chamber 54 is provided with the first glue injection port, the second glue injection port, the outlet of the first glue inlet passage 51, the outlet of the second glue inlet passage 52, and the inlet of the glue outlet passage 53. And, the conversion member 41 slides in the accommodation chamber 54. With this design, multiple components are integrated together, contributing to further reducing the overall volume of the dispensing valve.
In some embodiments of the invention, referring to fig. 1 to 5, in order to improve the tightness between the valve body 5 and the transition piece 41, the switching assembly 4 further comprises a bushing 43, the bushing 43 being mounted with an interference fit in the housing cavity 54, the transition piece 41 being slidably disposed in the bushing 43. Specifically, the bushing 43 has a first glue inlet hole 431, a second glue inlet hole 432, a first glue injection hole 433, a second glue injection hole 434, and a glue outlet hole 435. The first glue inlet channel 51 is communicated with the first glue supplementing channel 413 through a first glue inlet hole 431, the second glue inlet channel 52 is communicated with the second glue supplementing channel 414 through a second glue inlet hole 432, the first glue injection hole 433 is communicated with the first material outlet channel 411 through a first glue injection hole 433, the second glue injection hole is communicated with the second material outlet channel 412 through a second glue injection hole 434, the first material outlet channel 411 is communicated with the glue outlet 11 through a glue outlet hole 435, and the second material outlet channel 412 is communicated with the glue outlet 11 through a glue outlet hole 435. Meanwhile, the bush 43 is made of wear-resistant materials such as teflon, graphite or ceramics, and the conversion piece 41 is also made of wear-resistant materials such as teflon, graphite or ceramics, so that the friction between the conversion piece 41 and the bush 43 can be reduced while the sealing performance is ensured, and the service life is prolonged.
In some embodiments of the present invention, referring to fig. 1 to 5, the accommodating chamber 54 extends from one side of the valve body 5 to the other side of the valve body 5, the two ends of the accommodating chamber 54 are respectively provided with the sealing end cover 55 and the switching power source 42, the sealing end cover 55 is detachably mounted on the valve body 5, the switching power source 42 is detachably mounted on the valve body 5, and the sealing end cover 55 and the switching power source 42 respectively close the two end openings of the accommodating chamber 54. On one hand, the movable range of the conversion piece 41 is limited, and on the other hand, the inspection and the maintenance are convenient. In addition, in order to improve the sealing property, a first seal 56 is provided between the seal end cover 55 and the valve body 5, the first seal 56 surrounding an opening of one end of the housing chamber 54; a second seal 57 is provided between the switching power source 42 and the valve body 5, and the second seal 57 surrounds the opening of the other end of the accommodation chamber 54.
In some embodiments of the present invention, referring to fig. 1 to 5, the first glue injection assembly 2 further includes a first liquid box 23, the first liquid box 23 is mounted on the valve body 5, the first glue cylinder 22 is mounted on the first liquid box 23, the first liquid box 23 has a first flow channel 231, one end of the first flow channel 231 is communicated with the first glue cylinder 22, and the other end of the first flow channel 231 is communicated with the first glue inlet channel 51. The second glue injection assembly 3 further comprises a second liquid box 33, the second liquid box 33 is installed on the valve body 5, the second glue cylinder 32 is installed on the second liquid box 33, the second liquid box 33 is provided with a second flow channel 331, one end of the second flow channel 331 is communicated with the second glue cylinder 32, and the other end of the second flow channel 331 is communicated with the second glue inlet channel 52. By adopting the design, the structure is simple, the sealing performance of the dispensing valve is higher, and the whole volume of the dispensing valve is smaller.
A specific embodiment according to the present invention is described below with reference to fig. 1 to 5.
Referring to fig. 1 to 5, a dispensing valve according to an embodiment of the present invention includes: valve body 5, play gluey subassembly 1, first injecting glue subassembly 2, second injecting glue subassembly 3, power component 6, switching module 4. Wherein, go out gluey subassembly 1 and set up in the bottom of valve body 5, go out gluey subassembly 1 and be used for exporting glue. First injecting glue subassembly 2 sets up in the left side of valve body 5, and first injecting glue subassembly 2 is used for injecting glue to going out gluey subassembly 1. The second injecting glue subassembly 3 sets up on the right side of valve body 5, and second injecting glue subassembly 3 is used for injecting glue to going out gluey subassembly 1. The power assembly 6 provides power for the glue injection of the first glue injection assembly 2 and the second glue injection assembly 3. Switching subassembly 4 sets up in valve body 5, and switching subassembly 4 is used for switching out gluey subassembly 1 and first injecting glue subassembly 2 or second injecting glue subassembly 3 intercommunication.
Referring to fig. 1 to 5, a first glue injection channel 21 of the first glue injection assembly 2, a second glue injection channel 31 of the second glue injection assembly 3, a first glue inlet channel 51, a second glue inlet channel 52, a glue outlet channel 53, and a receiving cavity 54 are arranged in the valve body 5. The first glue inlet channel 51 is located on the left side of the first glue injection channel 21. The second glue inlet channel 52 is located on the right side of the second glue injection channel 31, and the second glue inlet channel 52 is located on the left side of the first glue inlet channel 51. The glue outlet channel 53 is located below the first glue injection channel 21 and the second glue injection channel 31. The receiving chamber 54 extends from the left side surface of the valve body 5 to the right side surface of the valve body 5, i.e., the receiving chamber 54 penetrates the valve body 5. The accommodating cavity 54 is located between the glue outlet channel 53 and the second glue injection channel 31, and the accommodating cavity 54 is located between the glue outlet channel 53 and the first glue injection channel 21. The inner wall surface of the accommodating cavity 54 is provided with a first glue injection port of the first glue injection channel 21, a second glue injection port of the second glue injection channel 31, an outlet of the first glue inlet channel 51, an outlet of the second glue inlet channel 52 and an inlet of the glue outlet channel 53. A sealing end cover 55 covers the left end opening of the accommodating cavity 54, the sealing end cover 55 is detachably mounted on the left side surface of the valve body 5, a first sealing member 56 is further arranged between the sealing end cover 55 and the valve body 5, the first sealing member 56 is in a ring shape, and the left end opening of the accommodating cavity 54 is located in a hollow part of the first sealing member 56. The switching power source 42 of the switching assembly 4 is covered at the right end opening of the accommodating cavity 54, the switching power source 42 is detachably mounted on the right side surface of the valve body 5, a second sealing member 57 is further arranged between the switching power sources 42, the second sealing member 57 is in a ring shape, and the right end opening of the accommodating cavity 54 is located in the hollow part of the second sealing member 57.
Referring to fig. 1 to 5, the glue discharging assembly 1 is a nozzle, an upper end of the nozzle is hermetically connected to a bottom of the valve body 5, a lower end of the nozzle is provided with a glue outlet 11, and the glue outlet 11 is communicated with the glue discharging passage 53.
Referring to fig. 1 to 5, the first glue injection assembly 2 includes a first glue injection channel 21, a first glue injection rod 24, a first glue cylinder 22, and a first liquid box 23. Wherein, first injecting glue passageway 21 sets up in valve body 5, and the extending direction of first injecting glue passageway 21 is vertical to be set up, and first injecting glue passageway 21 is a cross section for circular shape passageway, and the lower extreme opening of first injecting glue passageway 21 constitutes first injecting glue mouth. First injecting glue pole 24 slides and sets up in first injecting glue passageway 21, and first injecting glue pole 24 reciprocates along the extending direction of first injecting glue passageway 21, is provided with first sealing washer 25 between the internal perisporium of the periphery wall of first injecting glue pole 24 and first injecting glue passageway 21. The first liquid box 23 is detachably mounted on the left side surface of the valve body 5, a first flow channel 231 is arranged inside the first liquid box 23, and the right end of the first flow channel 231 is communicated with the first glue inlet channel 51. The first glue cylinder 22 is used for storing glue to supplement the glue to the first glue injection channel 21, the first glue cylinder 22 is detachably mounted at the top of the first liquid box 23, and an inner cavity of the first glue cylinder 22 is communicated with the left end of the first flow channel 231.
Referring to fig. 1 to 5, the second glue injection assembly 3 includes a second glue injection channel 31, a second glue injection rod 34, a second glue cylinder 32, and a second liquid box 33. Wherein, second injecting glue passageway 31 sets up in valve body 5, and the extending direction vertical setting of second injecting glue passageway 31, second injecting glue passageway 31 are two cross sections for circular shape passageway, and the lower extreme opening of second injecting glue passageway 31 constitutes the second injecting glue mouth. The second glue injection rod 34 is slidably arranged in the second glue injection channel 31, the second glue injection rod 34 moves up and down along the extending direction of the second glue injection channel 31, and a second sealing ring 35 is arranged between the outer peripheral wall of the second glue injection rod 34 and the inner peripheral wall of the second glue injection channel 31. The second liquid box 33 is detachably mounted on the left side surface of the valve body 5, a second flow channel 331 is provided inside the second liquid box 33, and the right end of the second flow channel 331 is communicated with the second glue inlet channel 52. The second glue cylinder 32 is used for storing glue to supplement the glue to the second glue injection channel 31, the second glue cylinder 32 is detachably mounted at the top of the second liquid box 33, and an inner cavity of the second glue cylinder 32 is communicated with the left end of the second flow channel 331.
Referring to fig. 1 to 5, the power assembly 6 includes a first lead screw 61, a second lead screw 62, and a driving motor 63. The first screw rod 61 is arranged at the upper end of the first glue injection rod 24, and the axial direction of the first screw rod 61 is vertically arranged. The second screw 62 is arranged at the upper end of the second glue injection rod 34, the axial direction of the second screw 62 is vertically arranged, and the thread direction of the second screw 62 is opposite to that of the first screw 61. The driving motor 63 is detachably mounted at the top of the valve body 5, the output shaft of the driving motor 63 is provided with a driving screw 631, the driving screw 631 is axially and vertically arranged, and the driving screw 631 is simultaneously in threaded connection with the first screw 61 and the second screw 62. When the driving motor 63 rotates forward, the driving motor 63 drives the first lead screw 61 to move upward through the driving lead screw 631, the first lead screw 61 drives the first glue injection rod 24 to move upward to realize glue supplementing operation of the first glue injection channel 21, meanwhile, the driving motor 63 also drives the second lead screw 62 to move downward through the driving lead screw 631, and the second lead screw 62 moves to drive the second glue injection rod 34 to move downward to realize glue injecting operation of the second glue injection channel 31. When the driving motor 63 rotates reversely, the driving motor 63 drives the first lead screw 61 to move downwards through the driving lead screw 631, the first lead screw 61 drives the first glue injection rod 24 to move downwards to realize the glue injection work of the first glue injection channel 21, meanwhile, the driving motor 63 also drives the second lead screw 62 to move upwards through the driving lead screw 631, and the second lead screw 62 moves to drive the second glue injection rod 34 to move upwards to realize the glue compensation work of the second glue injection channel 31.
Referring to fig. 1 to 5, switching assembly 4 includes a bushing 43, a transition piece 41, and a switching power source 42. Wherein, bush 43 is made by wear-resisting material such as polytetrafluoroethylene or graphite, and bush 43 installs in holding chamber 54 with interference fit, and bush 43 is located between end cover 55 and switching power source 42. The bushing 43 is a hollow cylinder with two open ends, and the bushing 43 is provided with a first glue inlet hole 431, a second glue inlet hole 432, a first glue injection hole 433, a second glue injection hole 434 and a glue outlet hole 435 which are communicated with the hollow part of the bushing 43. The first glue inlet 431 corresponds to and communicates with the outlet of the first glue inlet channel 51. The second glue inlet hole 432 corresponds to and communicates with the outlet of the second glue inlet channel 52. The first glue injection hole 433 corresponds to and communicates with the first glue injection opening of the first glue injection passage 21. The second glue injection hole 434 corresponds to and communicates with the second glue injection port of the second glue injection channel 31. The glue outlet 435 corresponds to and communicates with the upper opening of the glue outlet channel 53. The conversion member 41 is slidably disposed in the hollow portion of the liner 43, and a first discharge channel 411, a second discharge channel 412, a first supplement channel 413, and a second supplement channel 414 are disposed on the conversion member 41. The upper end of the first discharging channel 411 is communicated with the first glue injecting channel 21 through the first glue injecting hole 433, and the lower end of the first discharging channel 411 is converged with the lower end of the second discharging channel 412 and communicated with the glue discharging channel 53 through the glue discharging hole 435 after being converged. The upper end of the second discharging channel 412 is communicated with the second glue injecting channel 31 through the second glue injecting hole 434, and the lower end of the second discharging channel 412 is converged with the lower end of the first discharging channel 411 and then communicated with the glue discharging channel 53 through the glue discharging hole 435. The left end of the first supplement channel 413 can be communicated with the first glue inlet channel 51 through the first glue inlet hole 431, and the right end of the first supplement channel 413 can be communicated with the first glue injection channel 21 through the first glue injection hole 433. The right end of the second feed channel 414 can be communicated with the second glue inlet channel 52 through a second glue inlet hole 432, and the left end of the second feed channel 414 can be communicated with the second glue injection channel 31 through a second glue injection hole 434. The switching power source 42 is detachably mounted on the right side surface of the valve body 5, the switching power source 42 covers the right end opening of the accommodating chamber 54, the switching power source 42 is used for providing power for the displacement of the conversion member 41, and the switching power source 42 is an air cylinder.
The switching member 41 has a first operating position and a second operating position in the valve body 5. When the converting element 41 is located at the first working position, the driving motor 63 drives the first glue injection rod 24 to move vertically downward, the glue in the first glue injection channel 21 sequentially passes through the first discharging channel 411 and the glue outlet channel 53 and then flows out from the glue outlet 11 of the glue outlet assembly 1, meanwhile, the driving motor 63 drives the second glue injection rod 34 to move vertically upward, and the glue in the second glue cylinder 32 sequentially passes through the second flow channel 331, the second glue inlet channel 52 and the second glue supplementing channel 414 and then flows into the second glue injection channel 31. When the converting element 41 is located at the second working position, the first glue injection rod 24 of the driving motor 63 moves vertically upward, the glue in the first glue cylinder 22 flows into the first glue injection channel 21 after sequentially passing through the first flow channel 231, the first glue inlet channel 51 and the first glue supplementing channel 413, meanwhile, the driving motor 63 drives the second glue injection rod 34 to move vertically downward, and the glue in the second glue injection channel 31 flows out from the glue outlet 11 of the glue outlet assembly 1 after sequentially passing through the second discharging channel 412 and the glue outlet channel 53.
In addition, the invention also provides a glue dispensing device which can be a glue dispenser, a mechanical arm with a glue dispensing function, a robot with a glue dispensing function and the like. Specifically, the dispensing device has the dispensing valve, and the rest of the construction and operation of the dispensing device can be known to those skilled in the art and will not be described in detail herein.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description herein, references to the description of the terms "embodiment," "particular embodiment," "example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples without interference or contradiction.
Claims (6)
1. A dispensing valve, comprising:
the glue discharging assembly (1), the glue discharging assembly (1) is provided with a glue discharging opening (11);
the first glue injection assembly (2), the first glue injection assembly (2) is provided with a first glue injection opening;
the second glue injection assembly (3), the second glue injection assembly (3) is provided with a second glue injection opening;
the switching assembly (4), the switching assembly (4) comprises a switching piece (41) and a switching power source (42), the switching piece (41) is provided with a first discharging channel (411) and a second discharging channel (412), and the switching power source (42) drives the switching piece (41) to displace;
the conversion piece (41) is provided with a first working position and a second working position, and when the conversion piece (41) is located at the first working position, the first glue injection port is communicated with the glue outlet (11) through the first discharging channel (411); when the conversion piece (41) is in a second working position, the second glue injection port is communicated with the glue outlet (11) through the second discharging channel (412);
the first glue injection assembly (2) comprises a first glue cylinder (22) and a first glue injection channel (21), and the first glue injection channel (21) is provided with a first glue injection opening;
the second glue injection assembly (3) comprises a second glue cylinder (32) and a second glue injection channel (31), and the second glue injection channel (31) is provided with a second glue injection port;
the conversion piece (41) is provided with a first feeding channel (413) and a second feeding channel (414);
when the conversion piece (41) is in the first working position, the second glue cylinder (32) is communicated with the second glue injection channel (31) through the second feeding channel (414); when the conversion piece (41) is in the second working position, the first glue cylinder (22) is communicated with the first glue injection channel (21) through the first feeding channel (413);
the dispensing valve further comprises a valve body (5), the first glue injection channel (21) and the second glue injection channel (31) are arranged in the valve body (5), a first glue inlet channel (51) and a second glue inlet channel (52) are arranged in the valve body (5), the first glue inlet channel (51) is communicated with the first glue cylinder (22), the first glue inlet channel (51) is communicated with the first glue injection channel (21) through the first material supplementing channel (413), the second glue inlet channel (52) is communicated with the second glue cylinder (32), and the second glue inlet channel (52) is communicated with the second glue injection channel (31) through the second material supplementing channel (414);
a glue outlet channel (53) and an accommodating cavity (54) are arranged in the valve body (5), the first discharging channel (411) is communicated with the glue outlet (11) through the glue outlet channel (53), the second discharging channel (412) is communicated with the glue outlet (11) through the glue outlet channel (53), the first glue injection port, the second glue injection port, an outlet of the first glue inlet channel (51), an outlet of the second glue inlet channel (52) and an inlet of the glue outlet channel (53) are arranged on the inner wall surface of the accommodating cavity (54), and the conversion piece (41) slides in the accommodating cavity (54);
the switching assembly (4) further comprises a bushing (43), the bushing (43) is installed in the accommodating cavity (54) in an interference fit manner, the converting element (41) is slidably arranged in the bushing (43), the bushing (43) is provided with a first glue inlet hole (431), a second glue inlet hole (432), a first glue injection hole (433), a second glue injection hole (434) and a glue outlet hole (435), the first glue inlet channel (51) is communicated with the first supplementary channel (413) through the first glue inlet hole (431), the second glue inlet channel (52) is communicated with the second supplementary channel (414) through the second glue inlet hole (432), the first glue injection hole is communicated with the first glue outlet channel (411) through the first glue injection hole (433), and the second glue injection hole is communicated with the second glue outlet channel (412) through the second glue injection hole (434), the first discharging channel (411) is communicated with the glue outlet (11) through the glue outlet hole (435), and the second discharging channel (412) is communicated with the glue outlet (11) through the glue outlet hole (435).
2. The dispensing valve of claim 1, wherein: when the conversion piece (41) is in a first working position, the first rubber cylinder (22) is communicated with the first feeding channel (413); when the switching piece (41) is in the second working position, the second rubber cylinder (32) is communicated with the second feeding channel (414).
3. The dispensing valve of claim 1, wherein:
the bushing (43) is made of polytetrafluoroethylene, or graphite, or ceramic;
the conversion piece (41) is made of polytetrafluoroethylene, or graphite, or ceramic;
the accommodating cavity (54) extends from one side of the valve body (5) to the other side of the valve body (5), two ends of the accommodating cavity (54) are respectively provided with a sealing end cover (55) and a switching power source (42), the sealing end covers (55) are detachably mounted on the valve body (5), the switching power source (42) is detachably mounted on the valve body (5), and the sealing end covers (55) and the switching power source (42) respectively close two end openings of the accommodating cavity (54);
a first sealing member (56) is arranged between the sealing end cover (55) and the valve body (5), and the first sealing member (56) surrounds an opening of one end of the accommodating cavity (54);
a second seal (57) is provided between the switching power source (42) and the valve body (5), the second seal (57) surrounding an opening of the other end of the accommodation chamber (54);
the first glue injection assembly (2) further comprises a first liquid box (23), the first liquid box (23) is installed on the valve body (5), the first glue cylinder (22) is installed on the first liquid box (23), the first liquid box (23) is provided with a first flow channel (231), one end of the first flow channel (231) is communicated with the first glue cylinder (22), and the other end of the first flow channel (231) is communicated with the first glue inlet channel (51);
the second glue injection assembly (3) further comprises a second liquid box (33), the second liquid box (33) is installed on the valve body (5), the second glue cylinder (32) is installed on the second liquid box (33), the second liquid box (33) is provided with a second flow channel (331), one end of the second flow channel (331) is communicated with the second glue cylinder (32), and the other end of the second flow channel (331) is communicated with the second glue inlet channel (52).
4. The dispensing valve according to any one of claims 1 to 3, wherein:
the first end of the first discharging channel (411) is communicated with the first glue injection port, and the second end of the first discharging channel (411) is communicated with the glue outlet (11);
a first end of the second discharging channel (412) is used for being communicated with the second glue injection port, and a second end of the second discharging channel (412) is used for being communicated with the glue outlet (11);
the second end of the first outlet channel (411) and the second end of the second outlet channel (412) merge at the same outlet.
5. The dispensing valve of claim 4, wherein:
the first glue injection assembly (2) further comprises a first glue injection rod (24), and the first glue injection rod (24) is arranged in the first glue injection channel (21) in a sliding mode;
the second glue injection assembly (3) further comprises a second glue injection rod (34), and the second glue injection rod (34) is arranged in the second glue injection channel (31) in a sliding mode;
a first sealing ring (25) is arranged between the first glue injection rod (24) and the first glue injection channel (21);
a second sealing ring (35) is arranged between the second glue injection rod (34) and the second glue injection channel (31);
the dispensing valve further comprises a power assembly (6), and the power assembly (6) provides power for the displacement of the first glue injection rod (24) and the second glue injection rod (34);
the power assembly (6) may be any one of the following structures:
the power assembly (6) comprises a first screw rod (61), a second screw rod (62) and a driving motor (63), the first screw rod (61) is arranged on the first glue injection rod (24), the second screw rod (62) is arranged on the second glue injection rod (34), the thread direction of the second screw rod (62) is opposite to that of the first screw rod (61), a driving screw rod (631) is installed on an output shaft of the driving motor (63), and the driving screw rod (631) is in threaded connection with the first screw rod (61) and the second screw rod (62) at the same time;
the power assembly (6) comprises a first screw rod (61), a second screw rod (62), a first motor and a second motor, the first screw rod (61) is arranged on the first glue injection rod (24), the second screw rod (62) is arranged on the second glue injection rod (34), an output shaft of the first motor is in threaded connection with the first screw rod (61), and an output shaft of the second motor is in threaded connection with the first screw rod (61);
the power assembly (6) comprises a first air cylinder and a second air cylinder, an output shaft of the first air cylinder is connected with the first glue injection rod (24), and an output shaft of the second air cylinder is connected with the second glue injection rod (34);
the power assembly (6) comprises a first oil cylinder and a second oil cylinder, an output shaft of the first oil cylinder is connected with the first glue injection rod (24), and an output shaft of the second oil cylinder is connected with the second glue injection rod (34).
6. A kind of glue dropping apparatus, its characterized in that: the dispensing device comprises a dispensing valve according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210078804.8A CN114472076B (en) | 2022-01-24 | 2022-01-24 | Dispensing valve and dispensing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210078804.8A CN114472076B (en) | 2022-01-24 | 2022-01-24 | Dispensing valve and dispensing device |
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| CN114472076A CN114472076A (en) | 2022-05-13 |
| CN114472076B true CN114472076B (en) | 2022-09-27 |
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| CN202210078804.8A Active CN114472076B (en) | 2022-01-24 | 2022-01-24 | Dispensing valve and dispensing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117583213B (en) * | 2024-01-19 | 2024-04-02 | 常州铭赛机器人科技股份有限公司 | Gel height compensation method, device, equipment and medium thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWM246506U (en) * | 2003-09-25 | 2004-10-11 | E & R Engineering Corp | Glue applying valve with backfilling, glue ceasing and switching functions |
| CN102107171B (en) * | 2010-12-24 | 2013-07-24 | 深圳市轴心自控技术有限公司 | Sealant coating system adopting two-component distribution system |
| TW201249544A (en) * | 2011-06-13 | 2012-12-16 | Evest Corp | Sealant-dispensing apparatus |
| CN203610272U (en) * | 2013-11-15 | 2014-05-28 | 深圳市阿莱恩斯科技有限公司 | Double-rod dispensing valve |
| CN103977933B (en) * | 2014-05-15 | 2016-08-24 | 肖根福罗格注胶技术(苏州工业园区)有限公司 | Double Motor Control list mouth metering glue injection equipment |
| CN208245080U (en) * | 2018-02-07 | 2018-12-18 | 深圳市大疆百旺科技有限公司 | It is a kind of for glue component and its gluing equipment of application |
| CN211802050U (en) * | 2019-12-06 | 2020-10-30 | 河南诚信装备科技有限公司 | Continuous glue discharging device for coating machine |
| CN113198685B (en) * | 2021-04-07 | 2022-08-05 | 深圳市鑫龙邦科技有限公司 | Bull phosphor powder glue dispensing valve |
| CN113877773B (en) * | 2021-12-09 | 2022-03-11 | 常州铭赛机器人科技股份有限公司 | High-precision screw valve |
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